Home / 255,511.29-383,606.05-218,310.42

Finding the Fourth Proportional to 255,511.29, 383,606.05 and 218,310.42

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Solution

The fourth proportional to 255,511.29, 383,606.05 and 218,310.42 is: 327,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,511.29 : 383,606.05 = 218,310.42 : x
  2. Step 2: Convert to fraction form
    255,511.29/383,606.05 = 218,310.42/x
  3. Step 3: Cross multiply
    255,511.29x = 383,606.05 × 218,310.42
  4. Step 4: Simplify right side
    255,511.29x = 83,745,195,972.01
  5. Step 5: Solve for x
    x = 83,745,195,972.01/255,511.29
  6. Step 6: Final answer
    x = 327,755.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.